This is my grandpa.

这是我（外）祖父。

Where is he?

他在哪儿？

He's in Shenzhen.

他在深圳。

Shenzhen is a big city now.

深圳现在是一个大城市。

Yes! Very big!

是的！非常大！

Was it a big city then?

那时它是一个大城市吗？

No.It was a very small village then.

不，那时它是一个非常小的村子。